EP2777703B1 - Compositions et procédés permettant d'améliorer le potentiel thérapeutique de cellules souches - Google Patents

Compositions et procédés permettant d'améliorer le potentiel thérapeutique de cellules souches Download PDF

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EP2777703B1
EP2777703B1 EP13159548.0A EP13159548A EP2777703B1 EP 2777703 B1 EP2777703 B1 EP 2777703B1 EP 13159548 A EP13159548 A EP 13159548A EP 2777703 B1 EP2777703 B1 EP 2777703B1
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Prior art keywords
cells
disease
blebbistatin
mscs
stem cells
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German (de)
English (en)
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EP2777703A1 (fr
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Christian Van Den Bos
Barbara Reinisch
Claudia Rosenbaum
Judith Schenk
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Lonza Cologne GmbH
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Lonza Cologne GmbH
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Priority to ES13159548.0T priority Critical patent/ES2602078T3/es
Application filed by Lonza Cologne GmbH filed Critical Lonza Cologne GmbH
Priority to EP13159548.0A priority patent/EP2777703B1/fr
Priority to CN201480015952.9A priority patent/CN105050597A/zh
Priority to AU2014229502A priority patent/AU2014229502B2/en
Priority to US14/777,352 priority patent/US20160030482A1/en
Priority to PCT/IB2014/001248 priority patent/WO2014140930A2/fr
Priority to JP2015562410A priority patent/JP6399410B2/ja
Priority to KR1020157029741A priority patent/KR102203925B1/ko
Priority to BR112015022565A priority patent/BR112015022565A2/pt
Priority to CA2905650A priority patent/CA2905650C/fr
Publication of EP2777703A1 publication Critical patent/EP2777703A1/fr
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Publication of EP2777703B1 publication Critical patent/EP2777703B1/fr
Priority to US15/688,148 priority patent/US20180055888A1/en
Priority to US16/738,495 priority patent/US20200147142A1/en
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    • A—HUMAN NECESSITIES
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    • A61K35/00—Medicinal preparations containing materials or reaction products thereof with undetermined constitution
    • A61K35/12—Materials from mammals; Compositions comprising non-specified tissues or cells; Compositions comprising non-embryonic stem cells; Genetically modified cells
    • A61K35/28—Bone marrow; Haematopoietic stem cells; Mesenchymal stem cells of any origin, e.g. adipose-derived stem cells
    • A—HUMAN NECESSITIES
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    • A61K31/00—Medicinal preparations containing organic active ingredients
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    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/4353—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems
    • A61K31/437—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom ortho- or peri-condensed with heterocyclic ring systems the heterocyclic ring system containing a five-membered ring having nitrogen as a ring hetero atom, e.g. indolizine, beta-carboline
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
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    • A61P43/00—Drugs for specific purposes, not provided for in groups A61P1/00-A61P41/00
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    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
    • A61P9/00—Drugs for disorders of the cardiovascular system
    • A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
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    • C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
    • C12N15/09—Recombinant DNA-technology
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    • C12N15/113—Non-coding nucleic acids modulating the expression of genes, e.g. antisense oligonucleotides; Antisense DNA or RNA; Triplex- forming oligonucleotides; Catalytic nucleic acids, e.g. ribozymes; Nucleic acids used in co-suppression or gene silencing
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    • C12N2320/30—Special therapeutic applications
    • C12N2320/31—Combination therapy

Definitions

  • the invention relates to stem cell compositions and methods.
  • Stem cell therapy is a promising approach in bone marrow, skin, heart, and corneal transplantation, graft versus host disease, hepatic and renal failure, lung injury, rheumatoid arthritis, treatment of autoimmune diseases such as Crohn's disease, ulcerative colitis, multiple sclerosis, lupus and diabetes; prevention of allograft rejection, neurological disorders and cardiovascular medicine.
  • MSCs Mesenchymal stem cells
  • progenitor or precursor cells can be isolated from a variety of tissues, such as bone marrow, skeletal muscle, dental pulp, bone, umbilical cord and adipose tissue.
  • MSCs are gaining increasing interest as a potential source for therapeutic approaches in regenerative medicine.
  • Stem cells can self-renew and have the capacity to differentiate into specific cell types or can be therapeutically used for the production and secretion of soluble factors that will promote tissue regeneration.
  • ES embryonic stem
  • donor stem/progenitor cells should possess desirable therapeutic properties, for example, minimal side effects, ability to integrate into host tissue, differentiation into desired cell lineages, paracrine effects, regulation of tissue remodeling and activation of endogenous repair/regeneration mechanisms.
  • MSCs have been employed in numerous preclinical studies in rodents, rabbits and baboon monkeys among others, for bone marrow, skin, heart, and corneal transplantation, graft versus host disease, hepatic and renal failure, lung injury, multiple sclerosis, rheumatoid arthritis, diabetes and lupus diseases.
  • Preliminary results from some of these studies have led to human clinical trials that are currently being carried out. These trials involve treatment of autoimmune diseases such as Crohn's disease, ulcerative colitis, multiple sclerosis and type 1 diabetes mellitus; prevention of allograft rejection; and enhancement of the survival of bone marrow and kidney grafts; and treatment of resistant graft versus host disease.
  • a major component of morbidity and mortality attributable to cardiovascular disease occurs as a consequence of the partial or complete blockage of vessels carrying blood in the coronary and/or peripheral vasculature.
  • vessels carrying blood in the coronary and/or peripheral vasculature When such vessels are partially occluded, lack of blood flow causes ischemia to the muscle tissues supplied by such vessel, consequently inhibiting muscle contraction and/or per function.
  • Total occlusion of blood flow causes necrosis of the muscle tissue.
  • PAD Peripheral artery disease
  • blood vessel occlusion is partially compensated by natural processes, in which new vessels are formed (a process often referred to as “angiogenesis") and small vessels are enlarged (termed “arteriogenesis”) to replace the function of the impaired vessels.
  • angiogenesis a process often referred to as "angiogenesis”
  • arteriogenesis small vessels are enlarged (termed “arteriogenesis") to replace the function of the impaired vessels.
  • new conduits may facilitate restoration of blood flow to the deprived tissue, thereby constituting "natural bypasses" around the occluded vessels.
  • hPS human pluripotent stem
  • hES human embryonic stem
  • hiPS induced pluripotent stem
  • NMII non-muscle myosin II
  • blebbistatin non-muscle myosin II
  • U.S. Pub. No. 20100216181 discloses cultivation of pluripotent stem cells in a medium that is free of serum and feeder cells using blebbistatin as survival factor. Increased numbers of cells are generated by cultivating the cells in spinner flasks or bioreactors.
  • Published PCT application WO2012062819 discloses a method for controlling binding of cells to a substrate using blebbistatin as a promoter for adhesion of cells to which the cells usually have no or limited affinity.
  • One aspect of the invention relates to a method of treating a vascular disease comprising administering to a patient in need thereof, an effective amount of a composition comprising a population of cells and blebbistatin, thus treating the vascular disease.
  • the vascular disease is a result of diabetes. In another embodiment, the vascular disease is a result of atherosclerosis. In a further embodiment, the vascular disease is peripheral vascular disease (PVD). In still another embodiment, the vascular disease is peripheral artery disease (PAD). In still a further embodiment, the vascular disease is associated with an ankle brachial pressure index of about or less than 0.9. In yet another embodiment, the vascular disease is associated with an ankle brachial pressure index of about or less than 0.7. In still another embodiment, the vascular disease has resulted in critical limb ischemia. In another embodiment, the vascular disease has resulted in skin ulcerations or gangrene. In a further embodiment, the composition results in or enhances angiogenesis. In still another embodiment, the composition results in or enhances angiogenesis by at least about 20 percent compared to control.
  • a portion of the population of cells comprises pluripotent cells.
  • the pluripotent cells are induced pluripotent stem cells.
  • a portion of the population of cells comprises multipotent cells.
  • the multipotent cells are multipotent stromal cells or mesenchymal stem cells.
  • the multipotent cells are derived from induced pluripotent stem cells.
  • the composition comprises a pharmaceutically acceptable carrier.
  • the limb function in the patient improves by about or at least 2-3 grades compared to the same patient not receiving the composition.
  • the limb blood flow in the patient improves to about or at least 65-85% of normal or untreated limb blood flow.
  • the ischemic damage in the patient improves by about or at least 2, 3 or 4 grades compared to the same patient not receiving the composition.
  • the ischemic damage in the patient improves at a faster rate (or accelerated rate) compared to the same patient not receiving the composition.
  • the composition is administered intravenously. In still another embodiment, the composition is administered intramuscularly. In another embodiment, the composition is administered intramuscularly at or in proximity to a site of ischemic damage.
  • kits comprising: a population of multipotent cells; blebbistatin a pharmaceutically acceptable carrier; and optionally, instructions for administering these to a patient diagnosed with disease which is amenable to treatment using stem cell thereapy.
  • the disease is a cardiovascular disease.
  • the disease is peripheral artery disease.
  • the cells are MSCs.
  • the non-muscle myosin II antagonist is blebbistatin.
  • the cardiovascular disease is peripheral artery disease.
  • the cells are MSCs, the non-muscle myosin II antagonist is blebbistatin and the cardiovascular disease is peripheral artery disease.
  • the kit further comprises a cardiovascular drug.
  • the kit further comprises a stent.
  • the kit further comprises a drug-eluting stent.
  • the items comprising the kit are in separate containers.
  • the population of multipotent cells; the non-muscle myosin II antagonist; and the pharmaceutically acceptable carrier are in the same container, e.g., a syringe or automated administration device.
  • the kit may be for a peripheral artery disease.
  • the kit may have cells that are MSCs.
  • the non-muscle myosin II antagonist is ideally blebbistatin and the disease is a peripheral artery disease.
  • the kit may further comprises a cardiovascular drug, and/or a stent and/or a drug-eluting stent.
  • the items may be in separate containers, in the same container or, in a syringe.
  • Another aspect of the invention relates to a method of reducing the rate of amputation in a peripheral artery disease patient treated with a composition comprising MSCs, comprising contacting the MSCs wherein, the non-muscle myosin II antagonist is blebbistatin.
  • the rate is reduced by at least about 20%, 30%, 40%, 50%, 60%, 70%, 80%, or 90% or more.
  • Another aspect of the invention relates to a stem cell composition for treating a disease amenable to treatment with stem cell therapy comprising a population of multipotent cells; and a non-muscle myosin II antagonist, wherein the non-muscle myosin II antagonist is blebbistatin.
  • the cells are MSCs.
  • Another aspect of the invention relates to a method of making a stem cell composition for treating a disease amenable to treatment with stem cell therapy comprising a population of multipotent cells; and the non-muscle myosin II antagonist blebbistatin; wherein the population of multipotent cells and blebbistatin are incubated together for period of time prior to administration to a patient.
  • a further aspect of the invention is directed to a method of accelerating the healing of a disease amenable to treatment with stem cell therapy comprising a treating a patient with a composition comprising a population of multipotent cells; and the non-muscle myosin II antagonist blebbistatin; wherein the composition results in healing of the disease faster than the same composition lacking the non-muscle myosin II antagonist blebbistatin.
  • the cells are MSCs.
  • the NM II antagonist is blebbistatin.
  • the disease are a cardiovascular disease.
  • MSC compositions and methods that allow for faster healing and enhanced regeneration of diseased or damaged tissues while strongly reducing complications during healing.
  • inventive MSCs compositions have great regenerative potential in a validated animal model.
  • blebbistatin dramatically and unexpectedly accelerate and enhances the therapeutic potential of MSCs and reduces severe complications in healing.
  • the term "about” is used to indicate that a value includes the inherent variation of error for the device, the method being employed to determine the value, or the variation that exists among the study subjects. Typically the term is meant to encompass approximately or less than 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19% or 20% variability depending on the situation.
  • the words “comprising” (and any form of comprising, such as “comprise” and “comprises”), “having” (and any form of having, such as “have” and “has”), “including” (and any form of including, such as “includes” and “include”) or “containing” (and any form of containing, such as “contains” and “contain”) are inclusive or open-ended and do not exclude additional, unrecited elements or method steps. It is contemplated that any embodiment discussed in this specification can be implemented with respect to any method or composition of the invention, and vice versa. Furthermore, compositions of the invention can be used to achieve methods of the invention.
  • Treating is referred to herein as administration of a substance to a subject with the purpose to cure, alleviate, relieve, remedy, prevent, or ameliorate a disorder, symptoms of the disorder, a disease state secondary to the disorder, or predisposition toward the disorder.
  • An "effective amount” is an amount of the substance that is capable of producing a medically desirable result as delineated herein in a treated subject.
  • the medically desirable result may be objective (i.e., measurable by some test or marker) or subjective (i.e., subject gives an indication of or feels an effect).
  • Disease amenable to treatment with stem cell therapy means any procedures, conditions, disorders, ailments and/or illnesses which can be treated by the administration of stem cells.
  • diseases include but are not limited to bone marrow, skin, heart, and corneal transplantation, graft versus host disease, hepatic and renal failure, lung injury, rheumatoid arthritis, treatment of autoimmune diseases such as Crohn's disease, ulcerative colitis, multiple sclerosis, lupus and diabetes; prevention of allograft rejection, neurological disorders and cardiovascular medicine; as well as Acute lymphoblastic leukemia (ALL), Acute myeloid leukemia (AML), Burkitt's lymphoma, Chronic myeloid leukemia (CML), Juvenile myelomonocytic leukemia (JMML), Non-Hodgkin's lymphoma Hodgkin's lymphoma, Lymphomatoid granulomatosis, Myelodysplastic syndrome (MDS), Chronic ALL lymphoblastic leukemia
  • “Vascular or cardiovascular disease” as referred to herein is characterized by clinical events including clinical symptoms and clinical signs.
  • Clinical symptoms are those experiences reported by a patient that indicate to the clinician the presence of pathology.
  • Clinical signs are those objective findings on physical or laboratory examinations that indicate to the clinician the presence of pathology.
  • Cardiovascular disease includes both “coronary artery disease” and “peripheral vascular disease,” both terms being defined below.
  • Clinical symptoms in cardiovascular disease include chest pain, shortness of breath, weakness, fainting spells, alterations in consciousness, extremity pain, paroxysmal nocturnal dyspnea, transient ischemic attacks and other such phenomena experienced by the patient.
  • Clinical signs in cardiovascular disease include such findings as EKG abnormalities, altered peripheral pulses, arterial bruits, abnormal heart sounds, rales and wheezes, jugular venous distention, neurological alterations and other such findings discerned by the clinician.
  • Clinical symptoms and clinical signs can combine in a cardiovascular disease such as a myocardial infarction (MI) or a stroke (also termed a "cerebrovascular accident” or "CVA"), where the patient will report certain phenomena (symptoms) and the clinician will perceive other phenomena (signs) all indicative of an underlying pathology.
  • MI myocardial infarction
  • CVA cerebrovascular accident
  • Cerebrovascular accident includes those diseases related to the cardiovascular disorders of fragile plaque disorder, occlusive disorder and stenosis.
  • a cardiovascular disease resulting from a fragile plaque disorder can be termed a "fragile plaque disease.”
  • Clinical events associated with fragile plaque disease include those signs and symptoms where the rupture of a fragile plaque with subsequent acute thrombosis or with distal embolization are hallmarks. Examples of fragile plaque disease include certain strokes and myocardial infarctions.
  • a cardiovascular disease resulting from an occlusive disorder can be termed an "occlusive disease.” Clinical events associated with occlusive disease include those signs and symptoms where the progressive occlusion of an artery affects the amount of circulation that reaches a target tissue.
  • Progressive arterial occlusion may result in progressive ischemia that may ultimately progress to tissue death if the amount of circulation is insufficient to maintain the tissues.
  • Signs and symptoms of occlusive disease include claudication, pain while resting, angina, and gangrene, as well as physical and laboratory findings indicative of vessel stenosis and decreased distal perfusion.
  • a cardiovascular disease resulting from restenosis can be termed an in-stent stenosis disease.
  • In-stent stenosis disease includes the signs and symptoms resulting from the progressive blockage of an arterial stent that has been positioned as part of a procedure like a percutaneous transluminal angioplasty, where the presence of the stent is intended to help hold the vessel in its newly expanded configuration.
  • the clinical events that accompany in-stent stenosis disease are those attributable to the restenosis of the reconstructed artery.
  • a “coronary artery disease” (“CAD”) refers to a vascular disorder relating to the blockage of arteries serving the heart. Blockage can occur suddenly, by mechanisms such as plaque rupture or embolization. Blockage can occur progressively, with narrowing of the artery via myointimal hyperplasia and plaque formation. Those clinical signs and symptoms resulting from the blockage of arteries serving the heart are manifestations of coronary artery disease. Manifestations of coronary artery disease include angina, ischemia, myocardial infarction, cardiomyopathy, congestive heart failure, arrhythmias and aneurysm formation.
  • occlusive disease in the coronary circulation is associated with arterial stenosis accompanied by anginal symptoms, a condition commonly treated with pharmacological interventions and with angioplasty.
  • PVD Porous Vascular Disease
  • PVD is a cardiovascular disease resulting from the blockage of the peripheral (i.e., non-coronary) arteries. Blockage can occur suddenly, by mechanisms such as plaque rupture or embolization, as occurs in fragile plaque disease. Blockage can occur progressively, with narrowing of the artery via myointimal hyperplasia and plaque formation, as in occlusive disease. Blockage can be complete or partial. Those clinical signs and symptoms resulting from the blockage of peripheral arteries are manifestations of peripheral vascular disease.
  • peripheral vascular diseases include, inter alia, claudication, ischemia, intestinal angina, vascular-based renal insufficiency, transient ischemic attacks, aneurysm formation, peripheral embolization and stroke.
  • Ischemic cerebrovascular disease is a type of peripheral vascular disease.
  • the ankle brachial pressure index (ABPI/ABI) may be determined.
  • ABPI/ABI the blood pressure readings in the ankles are lower than that in the arms, blockages in the arteries which provide blood from the heart to the ankle may be suspected.
  • An ABI ratio of about or less than 0.5 or 0.4 may be used as a threshold for diagnosis.
  • ABIs ABIs are abnormal the next step is generally a lower limb doppler ultrasound examination to look at site and extent of atherosclerosis.
  • Other imaging may be performed by angiography, where a catheter is inserted into the common femoral artery and selectively guided to the artery in question. While injecting a radiodense contrast agent an X-ray may be taken. Any flow limiting stenoses found in the x-ray can be identified and treated by atherectomy, angioplasty or stenting.
  • Multislice computerized tomography (CT) scanners may provide direct imaging of the arterial system as an alternative to angiography.
  • CT may facilitate evaluation of the aorta and lower limb arteries without the need for an angiogram's arterial injection of contrast agent.
  • Peripheral artery disease is a form of peripheral vascular diseases (PVD) in which there are partial or total blockage of blood supply to a limb, usually the leg, leading to impaired blood flow and hypoxia in the tissue.
  • PVD peripheral vascular diseases
  • CLI critical limb ischemia
  • Hind limb ischemia animal models have been used to evaluate various therapeutic approaches addressing stem cell transplantation.
  • the current PAD standard of care includes smoking cessation, reduction in cholesterol, antiplatelet agents, treatment of diabetes, treatment of high blood pressure, ACE-inhibitors, exercise, and cilostazol.
  • Additional treatment options can involve stents, e.g., drug-eluting stents. Such as paclitaxel-eluting stents.
  • stents e.g., drug-eluting stents.
  • Paclitaxel-eluting stents paclitaxel-eluting stents.
  • the methods and compositions disclosed herein are all envisaged to be provided with such treatment options. See for example, Bums et al., BMJ. 2003 March 15; 326(7389): 584-588 .
  • Peripheral artery disease is commonly divided in the Fontaine stages, introduced by René Fontaine in 1954 for ischemia: 1) Mild pain when walking (claudication), incomplete blood vessel obstruction; 2) Severe pain when walking relatively short distances (intermittent claudication), pain triggered by walking "after a distance of >150 m in stage II-a and after ⁇ 150 m in stage II-b"; 3) Pain while resting (rest pain), mostly in the feet, increasing when the limb is raised; 4) Biological tissue loss (gangrene) and difficulty walking.
  • compositions and methods disclosed herein are envisaged to result in the improvement of peripheral artery disease by improving the Fontaine Stage of a patient by about or at least 1, 2, 3 or 4 Stages over a period of at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 hours, days, weeks or months from the initiation of treatment or compared to control.
  • classification of peripheral artery disease by Rutherford consists of six stages: 1) Mild claudication; 2) Moderate claudication; 3) Severe claudication; 4) Ischemic pain at rest; 5) Minor tissue loss; and 6) Major tissue loss.
  • the compositions and methods disclosed herein are envisaged to result in the improvement of peripheral artery disease by improving the Rutherford Stage of a patient by about or at least 1, 2, 3, 4, 5 or 6 Stages over a period of at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 hours, days, weeks or months from the initiation of treatment or compared to control.
  • composition claimed herein results in or enhances angiogenesis.
  • composition results in or enhances angiogenesis by at least 20 percent compared to control.
  • composition claimed herein comprises a pharmaceutically acceptable carrier.
  • limb function grades are: “0” for flexing the toes to resist gentle traction of the tail, “1” for plantar flexion, “2” for dragging but no plantar flexion, and "3” for dragging of foot.
  • compositions and methods disclosed herein are envisaged to result in the improvement in limb function of a patient by about or at least 1, 2, 3 or 4 grades over a period of at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 hours, days, weeks or months from the initiation of treatment or compared to control.
  • ischemic damage can be used to evaluate various therapeutic approaches addressing stem cells transplantation.
  • ischemic damage can be expressed as a morphological grade.
  • the morphological grades are: "0" for substantial absence of necrosis, "1” for necrosis substantially limiting to toes (toes loss), "2” for necrosis extending to a dorsum pedis (foot loss), "3” for necrosis extending to a crus (knee loss), and "4" for necrosis extending to a thigh (total hind-limb loss).
  • compositions and methods disclosed herein are envisaged to result in the reduction of ischemic damage in a patient by about or at least 1, 2, 3 or 4 grades over a period of at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36 hours, days, weeks or months from the initiation of treatment or compared to control.
  • Blood flow in legs from both sides is measured, e.g., with a non-contact Laser Doppler, before and after treatment.
  • compositions and methods disclosed herein are envisaged to result in the improvement in limb blood flow of a patient to about or at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 99.5 or 100 percent of normal blood perfusion levels over a period of at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9,
  • Reducing the rate of amputation in a peripheral artery disease patient refer to the rate of PAD patients requiring amputation of limbs, digits and/or tissues due to e.g., infection or necrosis. There are standard rates of amputation associated with treatment with MSCs which can be readily determined.
  • the treatment of patients with a composition which includes a combination of MSCs and an NM II antagonists reduces the rates of such amputation by about or at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 99.5, 100, 125, 150, 175, 200, 250, 300
  • Cardiovascular Disease Drugs refers to medicaments useful for the management of diabetes, hypertension (e.g., ACE-inhibitors), cholesterol (e.g., statins), and antiplatelet drugs (e.g., aspirin, clopidogrel), anti-coagulants (e.g., warfarin), diuretics and beta-blockers. Additionally, cilostazol or pentoxifylline are cardiovascular diabetes drugs.
  • angiogenesis is defined as a physiological process involving the growth of new blood vessels from pre-existing vessels. Vasculogenesis is the term used for spontaneous blood-vessel formation, and intussusception is the term for new blood vessel formation by splitting off existing ones.
  • Angiogenesis is a normal process in growth and development, as well as in wound healing. It is also a fundamental step in the transition of tumors from a dormant state to a malignant state. Angiogenesis is said to be taking place when there is about or at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
  • “Accelerating healing” refers to the increased speed at which a disease amenable to stem cell therapy shows signs of improvement (with respect to a well-excepted qualitative or quantitative morphological or functional measurement associated with the disease in question) in response to therapy with the compositions disclosed herein.
  • the speed of healing increases by about or at least 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 99.5, 100, 125, 150, 175, 200, 250, 300, 350, 400, 500 or more percent a standard (e.g., standard of care) or control (e.g., standard
  • Patient refers to a mammalian subject diagnosed with or suspected of having or developing cardiovascular disease.
  • exemplary patients may be humans, apes, dogs, pigs, cattle, cats, horses, goats, sheep, rodents and other mammalians that can benefit from stem cell therapies.
  • composition administration is referred to herein as providing the compositions of the invention to a patient.
  • composition administration e.g., injection
  • s.c. sub-cutaneous injection
  • i.d. intradermal
  • i.p. intraperitoneal
  • intramuscular injection intramuscular injection.
  • Parenteral administration can be, for example, by bolus injection or by gradual perfusion over time.
  • administration may be by the oral route.
  • administration may also be by surgical deposition of a bolus or pellet of cells, or positioning of a medical device, e.g., a stent, loaded with cells.
  • the compositions of the invention are administered at the site of ischemic cardiovascular disease, e.g. at the site or near (e.g., about or at least 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 30, 40, 50 millimeters from) the a of the ischemic cardiovascular disease lesion (e.g., vascular stenosis/blockage, necrotic tissue or site of gangrenous infection).
  • Administration may be intravenous, intramuscular, at or near a site of a disease-associated lesion and/or intramuscular at or in proximity to the site of ischemic damage.
  • a patient in need thereof' is referred to herein as a patient diagnosed with or suspected of having cardiovascular disease.
  • the patient has or is likely to develop peripheral artery disease.
  • Totipotency is referred to herein as the ability of a single cell to divide and/produce all the differentiated cells in an organism, including extra-embryonic tissues. Totipotent cells include spores and zygotes. In some organisms, cells can dedifferentiate and regain totipotency.
  • Pluripotency is referred to herein as the potential to differentiate into any of the three germ layers: endoderm (interior stomach lining, gastrointestinal tract, the lungs), mesoderm (muscle, bone, blood, urogenital), or ectoderm (epidermal tissues and nervous system).
  • Pluripotent stem cells include natural pluripotent stem cells and induced pluripotent stem cells. They can give rise to any fetal or adult cell type. However, alone they generally cannot develop into a fetal or adult organism because they lack the potential to contribute to extra-embryonic tissue, such as the placenta.
  • iPS cells are similar to natural pluripotent stem cells, such as embryonic stem (ES) cells, in many aspects, such as the expression of certain stem cell genes and/orteins, chromatin methylation patterns, doubling time, embryoid body formation, teratoma formation, viable chimera formation, and potency and differentiability.
  • Induced pluripotent cells may be derived from for example, adult stomach, liver, skin cells and blood cells.
  • iPS cells may be derived by transfection of certain stem cell-associated genes into non-pluripotent cells, such as adult fibroblasts. In certain embodiments, transfection may be achieved through viral vectors, such as retroviruses, for example.
  • Transfected genes can include, but are not limited to, master transcriptional regulators Oct-3/4 (Pou5f1) and Sox2 Oct-4, Nanog and Lin28 transgenes. Sub-populations of transfected cells may begin to become morphologically and biochemically similar to pluripotent stem cells, and can be isolated through morphological selection, doubling time, or through a reporter gene and antibiotic selection.
  • Multipotency is referred to herein as multipotent progenitor cells which have the potential to give rise to multiple cell types, but a number of lineages more limited than a pluripotent stem cell.
  • a multipotent stem cell is a hematopoietic cell that can develop into several types of blood cells, but cannot develop into brain cells or other types of cells.
  • MSCs Multipotent Stromal Cell
  • stromal cells that can differentiate into a variety of cell types, including but not limited to: osteoblasts (bone cells), chondrocytes (cartilage cells), and adipocytes (fat cells).
  • mesenchymal stem cells are obtained from bone marrow. In another one embodiment, mesenchymal stem cells are obtained from developing tooth bud of the mandibular third molar. In another embodiment, MSCs are obtained from amniotic fluid. In another embodiment, MSCs may be obtained from the umbilical cord tissue, e.g., from Wharton's jelly and the umbilical cord blood. In a further embodiment, MSCs are isolated from adipose tissue. Alternatively, MSCs are isolated from Wharton's jelly.
  • MSCs are derived from iPS cells as, for example, described in Guiliani et al., "Human mesenchymal stem cells derived from induced pluripotent stem cells downregulate NK cell cytolytic machinery," Blood, July 29, 2011 .
  • MSCs preferably have a small cell body with a few cell processes that are long and thin.
  • the cell body may contain a large, round nucleus with a prominent nucleolus, which is surrounded by finely dispersed chromatin particles, giving the nucleus a clear appearance.
  • the remainder of the cell body contains a small amount of golgi apparatus, rough endoplasmic reticulum, mitochondria, and polyribosomes.
  • MSCs which are long and thin, are widely dispersed and the adjacent extracellular matrix is populated by a few reticular fibrils but is devoid of the other types of collagen fibrils.
  • Cell attachment is not a homogeneous process but rather occurs through particular zones, so-called focal adhesion zones.
  • cells exert tension by means of internal motor proteins.
  • the cytoskeleton may become organized and functions in a variety of processes including transport, scaffolding and cell survival. Upon de-attaching cells, these may quickly constrict as a function of the internal tension build up by motor proteins and the previously organized internal structures (cytoskeletal and other) can be disturbed. If not allowed to re-attach to surfaces, such cells may initiate cell death programs which have been described as attachment-dependent apopotosis/anoikis.
  • Myosins include a family of ATP-dependent motor proteins and are generally known for their role in muscle contraction and their involvement in a wide range of other eukaryotic motility processes. They are generally responsible for actin-based motility. Generally, myosin II (also known as conventional myosin) is the myosin type responsible for producing muscle contraction in muscle cells.
  • Non-Muscle Myosin II is an actin-binding protein that has actin cross-linking and contractile properties and is regulated in part through the phosphorylation of its light and heavy chains.
  • NM II molecules are comprised of three pairs of peptides: two heavy chains of 230 kDa, two 20 kDa regulatory light chains (RLCs) that regulate NM II activity and two 17 kDa essential light chains (ELCs) that stabilize the heavy chain structure.
  • non-muscle myosin IIs to distinguish them from their muscle counterparts, they are also present in muscle cells, where they have distinct functions during skeletal muscle development and differentiation, as well as in the maintenance of tension in smooth muscle.
  • NM II isoforms
  • the two globular head domains of NM II contain a binding site for both ATP and actin and they are followed by neck regions, each of which binds the two functionally different light chains.
  • the neck domain acts as a lever arm to amplify head rotation while the chemical energy of ATP is converted into the mechanical movement of the myosin head.
  • This neck domain is followed by a long ⁇ -helical coiled coil, which forms an extended rod-shaped domain that effects dimerization between the heavy chains and terminates in a relatively short non-helical tail.
  • the rod domains of NM II self-associate to form bipolar filaments (antiparallel arrays of myosin molecules), which are smaller than those found in cardiac and skeletal muscle.
  • NM II acts to integrate processes that drive cell migration and adhesion. It is also an important end point on which many signaling pathways converge, largely through Rho GTPases.
  • NM II itself is tightly regulated at different levels, including at the level of folding, myosin filament assembly and disassembly, actin binding and ATPase and motor activity.
  • the regulation of the actin cytoskeleton by NM II controls multiple interrelated processes, such as migration, cell-cell and cell-matrix adhesion, cell differentiation, tissue morphogenesis and development.
  • the spatiotemporal regulation of NM II by subcellular localization and activation of its regulating kinases in different cells and tissues has important ramifications in controlling the NM II function.
  • NM II The regulation of Mg 2+ -ATP hydrolysis and filament formation of NM II involves the reversible phosphorylation of specific amino acids present in the pair of 20 kDa RLCs and the heavy chains.
  • the function of the ELC pair is to stabilize the NMHC and there is no evidence that they undergo reversible phosphorylation. See also Vicente-Manzanares et al., Nat Rev Mol Cell Biol. 2009 November; 10(11): 778-790 .
  • Non-Muscle Mysosin II antagonist refers to an agent that directly or indirectly inhibits, blocks or reverses the activity of Myosin II as it occurs in nature or in the diseased or damaged tissues of patients suffering from cardiovascular disease.
  • Such an agent can be a small molecule (e.g., blebbistatin); nucleic acid including rRNA, mRNA, tRNA, miRNA, siRNA (see e.g., Ma et al., Mol. Biol. Cell November 15, 2010 vol. 21 no. 22 3952-3962 or Kim et al, J Biol Chem.
  • NM II antagonist can be an siRNA targeted to knock down the expression of the NM II encoding mRNA or the mRNA of a gene associated with the up-regulation of NM II; or a vector encoding such an siRNA.
  • Angiotensin II antagonists include Angiotensin II Type 1 Receptor Antagonists, (e.g., the non-peptide AT1 receptor antagonist FK-739 see Fuji et al., Hypertension, 1999;33:975-980 ) as well as Angiotensin II receptor antagonists, also known as angiotensin receptor blockers (ARBs), AT1-receptor antagonists or sartans, are a group of pharmaceuticals which modulate the renin-angiotensin-aldosterone system. Their main uses are in the treatment of hypertension (high blood pressure), diabetic nephropathy (kidney damage due to diabetes) and congestive heart failure.
  • Angiotensin II Type 1 Receptor Antagonists e.g., the non-peptide AT1 receptor antagonist FK-739 see Fuji et al., Hypertension, 1999;33:975-980
  • Angiotensin II receptor antagonists also known as angiotensin receptor blockers (ARBs),
  • Losartan, irbesartan, olmesartan, candesartan and valsartan include the tetrazole group (a ring with four nitrogen and one carbon).
  • Losartan, irbesartan, olmesartan, candesartan, and telmisartan include one or two imidazole groups.
  • Non-Muscle Mysosin II antagonists also include ACE inhibitors.
  • An ACE inhibitor or angiotensin-converting-enzyme inhibitor is a medication pharmaceutical drug used primarily for the treatment of high blood pressure (hypertension) and weak heart muscle (congestive heart failure).
  • Exemplary ACE inhibitors include captopril, zofenopril, enalapril, ramipril, quinapril, perindopril, lisinopril, benazepril, imidapril, zofenopril, trandolapril, fosinopril, casokinins and lactokinins, as well as the lactotripeptides Val-Pro-Pro and Ile-Pro-Pro produced by the probiotic Lactobacillus helveticus or derived from casein have been shown to have ACE-inhibiting and antihypertensive functions.
  • Non-Muscle Mysosin II antagonists also include 2,3-butanedione-2-monoxime (BDM) and inhibitors of myosin II adenosine triphosphatase (ATPase) activity.
  • BDM 2,3-butanedione-2-monoxime
  • ATPase adenosine triphosphatase
  • NM II antagonist is blebbistatin (a 1-phenyl-1-2-pyrrolidinone derivative) which is a specific pharmacologic inhibitor of skeletal muscle and nonmuscle myosin II adenosine triphosphatase (ATPase) activity.
  • Blebbistatin is highly active small molecule that inhibits cell blebbing. This compound is cell-permeant, benign and, importantly, readily reversible. It has been described as a survival factor in stem cell cultures. It has also been described as a promoter for adhesion of cells to a substrate to which the cells usually have no or only low affinity ( WO2012062819 ), e.g. as for coating of implanted medical devices such as pace makers, hip or bone implants or stents. Blebbistatin is shown below:
  • the term "blebbistatin” includes a racemic mixture. In some embodiments, the term blebbistatin refers to R-blebbistatin. In some embodiments, the term blebbistatin refers to S-blebbistatin.
  • This disclosure encompasses blebbistatin variants, analogs and derivatives. Additional blebbistatin variants, analogs and derivatives and Non-Muscle Mysosin II antagonists suitable and envisaged for use herein are disclosed in U.S. Pub. No. 20080021035 . See for example also: Straight et al., Science 299 (5613): 1743-47 ; Kovács et al., (Aug 2004), J Biol Chem. 279 (34): 35557-63 ; Limouze et al., (2004) J Muscle Res Cell Motil. 25 (4-5): 337-41 .
  • the therapeutic compositions disclosed herein contain or are associated with, at least one Non-Muscle Mysosin II antagonist whereby each at least one Non-Muscle Mysosin II antagonist is present in single dose at a concentration of about, at least or more than 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86
  • Non-Muscle Mysosin II antagonist is present in single dose at a concentration between about 1-100, 2-60, 3-50, 4-40, 5-30, 6-20, 7-15, 8-10, 2-18, 3-16, 4-14, 5-12, 6-10 or 7-8 ⁇ M.
  • the therapeutic compositions disclosed herein are administered in a dose about or at least or more than 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24 times per day, week or month over a period of about or at least or more than 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23 or 24 days, weeks or months.
  • the NM II antagonist is incubated with the cells of the composition about, at least or more than 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98 or 99 minutes, hours or days
  • kits comprising cells and an NM II antagonist.
  • Certain kit embodiments comprise (a) a container that contains at least one NM II antagonist; and (b) a container having stem cells.
  • the NM II may be in solution or in lyophilized form.
  • the kit may optionally include instructions for (i) use of the solution or (ii) reconstitution and/or use of the lyophilized formulation; or (iii) using the contents to treat cardiovascular disease.
  • the kit may further comprise one or more of (iii) a buffer, (iv) a diluent, (v) a filter, (vi) a needle, (v) a syringe, or (vi) an automated medical device.
  • the container is selected from the group consisting of: a bottle, a vial, a syringe, a test tube, or a multi-use container.
  • the target peptide composition is lyophilized.
  • a single dose of the therapeutic compositions described herein can contain at least or about 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99 or 100 each times 1, 10, 10 2 , 10 3 , 10 1 , 10 1 , 10 6 , 10 1 , 10 1 , 10 9 , 10
  • the addition of the NM II antagonist in the inventive compositions allow the clinician to provide a patient with a lower dose of stem cells than would be otherwise be needed to achieve the same therapeutic effect achieved with a population of stem cells lacking the NM II antagonist.
  • the addition of the NM II antagonist in the inventive compositions allow the clinician to provide a patient with at least or about 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 90 or more percent less stem cells per dose than would be otherwise be needed to achieve the same therapeutic effect over a define period of time.
  • kits including cells, NM II antagonists, pharmaceutically acceptable carriers, and - optionally - appropriate instructions, are disclosed.
  • the invention also relates to a method of reducing the rate of amputation in a peripheral artery disease patient treated with a composition comprising MSCs, comprising contacting the MSCs with a non-muscle myosin II antagonist prior to the treatment.
  • the non-muscle myosin II antagonist is blebbistatin.
  • the methods of treating can generally involve intramuscular injection of a dose of a composition of MSCs treated with an NM II antagonist such as blebbistatin at or near the site of the lesions arising from CVD such as PAD.
  • an NM II antagonist such as blebbistatin
  • Such injections generally result in an increase in limb function, blood flow, and ischemic symptoms.
  • an NM II antagonist such as blebbistatin in the composition dramatically accelerates MSC-triggered regeneration of damaged tissues.
  • application of blebbistatin with MSCs drastically reduces severe complications associated with PAD and/or the transplantation of MSCs to a patient suffering from PAD.
  • the methods and kits can also include additional cardiovascular drugs or medical devices such as for example stents (which may or may not be drug eluting).
  • additional cardiovascular drugs or medical devices such as for example stents (which may or may not be drug eluting).
  • stents may be loaded with MSCs which have been contacted with NM II antagonists prior to or during implantation.
  • Peripheral artery disease is a form of peripheral vascular diseases (PVD) in which there are partial or total blockage of blood supply to a limb, usually the leg, leading to impaired blood flow and hypoxia in the tissue.
  • PVD peripheral vascular diseases
  • CLI critical limb ischemia
  • TRef1-3 proliferative vascular endothelial growth factor
  • the minimum and maximum weights of the group were within a range of ⁇ 20 % of group mean weight; Acclimation period: 5-10 days; Identification: Three position ear notching and cage cards. No animals was found in a moribund condition or showed severe pain and enduring signs of severe distress. Surgery Day was defined as "DAY 0" in this study. On the day of surgery anesthesia was induced by 1.5 to 3.0% isoflurane, 1.5% N 2 O and 0.5% O 2 .
  • Test items Human Bone Marrow Mesenchymal Stem Cells (Lonza Cologne GmbH). Vehicles: DMEM + 10 % FCS, Optional: 10 ⁇ M Blebbistatin (BB).
  • the mouse Under anesthesia, the mouse was placed with ventral side up. A 0.5-1.0 cm incision was made in the skin in the inguinal area. The femoral artery was ligated twice with 6-0 silk thread and transected between the ligatures. The wound was closed with 4-0 silk thread and the mouse was allowed to recover.
  • each treated animal was injected intramuscular at two sites (the proximal and the distal side of the surgical wound) or intravenous into the tail vein.
  • intramuscular injection the animals were injected 50 ⁇ l at each site, total 100 ⁇ l per animal.
  • intravenous injection the animals were injected by 200 ⁇ l per animal. See Table 1 for Groups Allocation.
  • Table 1 Groups allocation Group Number of Animals Treatment (Lot) Treatment Day Cell Amount Route of Administration 1 15 DMEM (24hrs post-surgery) 0 i.m.
  • Body weight was measured on study day -1 prior to the surgery and once weekly thereafter.
  • Blood flow measurement Blood flow in legs from both sides was measured with a non-contact Laser Doppler before surgery and on days: 1, 3, 7, 14, 21, 28 and 35 post operation. Blood flow measurements were expressed as the ratio of the flow in the ischemic limb to that in the normal limb ( Goto et al. Tokai J Exp Clin Med., Vol. 31, No. 3, pp. 128-132, 2006 ). Consistently best regeneration was shown in Group 4, animals treated with MSC+BB ( Fig.1 ).
  • Macroscopic evaluation of ischemic severity Macroscopic evaluation of the ischemic limb was performed once a week post operation by using morphological grades for necrotic area (Goto et al.): See Table 2. Table 2 Morphological grades for necrotic area Grade Description 0 absence of necrosis 1 necrosis limiting to toes (toes loss), 2 necrosis extending to a dorsum pedis (foot loss), 3 necrosis extending to a crus (knee loss) 4 necrosis extending to a thigh (total hind-limb loss)
  • Limb function is graded as "Not applicable” in case of partial or full limb amputation. In such case blood flow measurements was not included in the statistical analysis.
  • the purpose of this study was to test the efficacy of the tested stem cells as a possible treatment to alleviate HLI symptoms in an animal nude mouse model.
  • Slope The slope computed is of the linear trend from surgery to Day 35. This single number for each animal represents its change on an endpoint over time. Distribution of slopes is provided for each group on each of the endpoints (excluding Weight), using Box Plots. These plots provide a convenient method for presenting many groups on a single graph. They should be read as follows: 25% of data points (in our case, slopes) are between the lower hinge and the bottom of the box-percentiles 0 to 25; 50% of data points are located between the bottom and top of the box-percentiles 25 to 75. This is also termed the "inter-quartile range" (IQR). 25% of data points are located between top of the box and upper hinge-percentiles 75 to 100.
  • IQR inter-quartile range
  • upper and lower fences are defined by a distance of 1.5*IQR from bottom and top of the box. While they are not actually shown in the plot, values outside these fences are considered outliers. So if there are data points above the upper fence, or below the lower fence, they are indicated separately on the boxplot; in other words, extreme points are not included between lower and upper hinges of the boxplot.
  • the next seven groups (9, 3, 2, 7, 6, 1 and 8) are in the 3rd category with a difference between best and worst - 2.5 (6.8-4.3), which is equivalent smaller than the distance between 1 st and 3rd places (3.1).
  • Group 10 (BM.MSC in DMEM, pre-BB (iv)) is far behind the "block of seven groups" in the previous bullet - 3 ranks. Note that Group 10 turned out especially ineffective due to a large number of amputations and so, ineffective values imputed for Day 35.
  • Impaired angiogenesis is one of the features of ischemic diseases.
  • clinical trials to alleviate ischemia have been disappointing, indicating the need for new molecules and therapeutic targets to treat ischemic diseases.
  • Stem cell therapy is a promising approach in cardiovascular medicine.
  • the mouse hind limb ischemia model is used.
  • Blebbistatin dramatically accelerated MSC-triggered regeneration of damaged tissues.
  • Application of Blebbistatin with MSCs drastically reduces severe complications in healing as clearly demonstrated by Group 4 (BM.MSC in DMEM +BB (im)) which is more effective than all groups on % Blood Flow and Limb Function, including group 5 BM.MSC in DMEM, pre-BB (im).
  • Blebbistatin drastically improves the regenerative potential of MSCs by reducing severe complications in healing.
  • Group 4 (BM.MSC in DMEM +BB (im) is more effective than all groups on % Blood Flow and Limb Function, including group 5 BM.MSC in DMEM, pre-BB (im).

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Claims (9)

  1. Composition comprenant une population de cellules souches et de la blebbistatine pour son utilisation dans le traitement d'une maladie pouvant être traitée avec une thérapie par les cellules souches.
  2. Composition pour son utilisation selon la revendication 1, dans laquelle la maladie est sélectionnée dans le groupe d'une maladie qui est un résultat du diabète, d'une maladie qui est un résultat de l'athérosclérose, d'une maladie vasculaire, d'une artériopathie périphérique (PAD).
  3. Composition pour son utilisation selon la revendication 1 ou 2, dans laquelle la maladie est associée à un indice de pression systolique cheville-bras d'environ 0,9 ou inférieur à 0,9, ou à un indice de pression systolique cheville-bras d'environ 0,7 ou inférieur à 0,7.
  4. Composition pour son utilisation selon les revendications 1 à 3, dans laquelle la maladie a résulté en une ischémie des membres critique et/ou la maladie a résulté en une ulcération de la peau ou la gangrène.
  5. Composition pour son utilisation selon les revendications 1 à 4, dans laquelle une partie de la population de cellules comprend des cellules pluripotentes et/ou, dans laquelle les cellules pluripotentes sont des cellules souches pluripotentes induites, et/ou, dans laquelle une partie de la population de cellules comprend des cellules multipotentes et/ou dans laquelle les cellules multipotentes sont des cellules stromales multipotentes ou des cellules souches mésenchymateuses et/ou, dans laquelle les cellules multipotentes sont dérivées de cellules souches pluripotentes induites.
  6. Composition pour son utilisation selon l'une quelconque des revendications 1 à 5, dans laquelle les cellules souches sont des MSC.
  7. Kit de traitement d'une maladie pouvant être traitée par une thérapie par les cellules souches comprenant :
    a. de la blebbistatine ;
    b. un vecteur pharmaceutiquement acceptable ;
    c. une population de cellules souches ; et
    d. facultativement des instructions pour l'administration des points (a) à (c) à un patient à qui une maladie cardiovasculaire a été diagnostiquée.
  8. Kit selon la revendication 7, dans lequel les cellules sont des cellules multipotentes.
  9. Kit selon la revendication 7, dans lequel les cellules sont des MSC.
EP13159548.0A 2013-03-15 2013-03-15 Compositions et procédés permettant d'améliorer le potentiel thérapeutique de cellules souches Active EP2777703B1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP13159548.0A EP2777703B1 (fr) 2013-03-15 2013-03-15 Compositions et procédés permettant d'améliorer le potentiel thérapeutique de cellules souches
ES13159548.0T ES2602078T3 (es) 2013-03-15 2013-03-15 Composiciones y métodos para mejorar el potencial terapéutico de las células madre
CA2905650A CA2905650C (fr) 2013-03-15 2014-03-13 Compositions et procedes pour ameliorer le potentiel therapeutique de cellules souches
US14/777,352 US20160030482A1 (en) 2013-03-15 2014-03-13 Compositions and methods for enhancing the therapeutic potential of stem cells
PCT/IB2014/001248 WO2014140930A2 (fr) 2013-03-15 2014-03-13 Compositions et procédés pour améliorer le potentiel thérapeutique de cellules souches
JP2015562410A JP6399410B2 (ja) 2013-03-15 2014-03-13 幹細胞の治療可能性を高めるための組成物および方法
CN201480015952.9A CN105050597A (zh) 2013-03-15 2014-03-13 增强干细胞治疗潜能的组合物和方法
BR112015022565A BR112015022565A2 (pt) 2013-03-15 2014-03-13 composições e métodos para aumentar o potencial terapêutico das células tronco
AU2014229502A AU2014229502B2 (en) 2013-03-15 2014-03-13 Compositions and Methods for Enhancing the Therapeutic Potential of Stem Cells
KR1020157029741A KR102203925B1 (ko) 2013-03-15 2014-03-13 줄기세포의 치료 효능 개선을 위한 조성물 및 방법
US15/688,148 US20180055888A1 (en) 2013-03-15 2017-08-28 Compositions and methods for enhancing the therapeutic potential of stem cells
US16/738,495 US20200147142A1 (en) 2013-03-15 2020-01-09 Compositions and methods for enhancing the therapeutic potential of stem cells

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US11622964B2 (en) 2018-01-29 2023-04-11 Institute Of Zoology, Chinese Academy Of Sciences Method for destroying cellular mechanical homeostasis and promoting regeneration and repair of tissues and organs, and use thereof
HU231285B1 (hu) 2018-04-18 2022-08-28 Printnet Kereskedelmi És Szolgáltató Kft. A miozin-2-izoformákat szelektíven gátló, gyógyászatilag hatásos vegyületek
CN108728410B (zh) * 2018-06-19 2020-04-21 中国医学科学院阜外医院 基于药物预处理的间充质干细胞来源外泌体的制备方法
JP7230409B2 (ja) * 2018-10-02 2023-03-01 カシオ計算機株式会社 判定装置、判定方法及び判定プログラム

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US8557580B2 (en) 2009-02-20 2013-10-15 Cellular Dynamics International, Inc. Methods and compositions for the differentiation of stem cells
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WO2012062819A2 (fr) 2010-11-09 2012-05-18 Lonza Cologne Gmbh Procédé pour réguler la liaison de cellules à un substrat
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EP2777703A1 (fr) 2014-09-17
US20180055888A1 (en) 2018-03-01
ES2602078T3 (es) 2017-02-17
BR112015022565A2 (pt) 2017-07-18
JP2016510808A (ja) 2016-04-11
CN105050597A (zh) 2015-11-11
WO2014140930A9 (fr) 2016-01-14
AU2014229502A1 (en) 2015-09-24
CA2905650C (fr) 2022-08-23
CA2905650A1 (fr) 2014-09-18
KR102203925B1 (ko) 2021-01-19
WO2014140930A2 (fr) 2014-09-18
US20160030482A1 (en) 2016-02-04
JP6399410B2 (ja) 2018-10-03
KR20150131324A (ko) 2015-11-24
US20200147142A1 (en) 2020-05-14
WO2014140930A3 (fr) 2014-12-24
AU2014229502A9 (en) 2016-06-16

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